JPS5923007B2 - 磁気記録媒体 - Google Patents

磁気記録媒体

Info

Publication number: JPS5923007B2
Authority: JP; Japan
Prior art keywords: magnetic; dispersant; recording medium; amine; magnetic recording
Prior art date: 1977-04-18
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired

Application number

JP53044719A

Other languages

English (en)

Japanese (ja)

Other versions

JPS53129606A (en

Inventor

ヘンドリクス・フレデリクス・フイスマン

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Koninklijke Philips NV

Original Assignee

Koninklijke Philips Electronics NV

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1977-04-18

Filing date

1978-04-15

Publication date

1984-05-30

1978-04-15 Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV

1978-11-11 Publication of JPS53129606A publication Critical patent/JPS53129606A/ja

1984-05-30 Publication of JPS5923007B2 publication Critical patent/JPS5923007B2/ja

Status Expired legal-status Critical Current

Links

239000002270 dispersing agent Substances 0.000 claims description 28
239000011230 binding agent Substances 0.000 claims description 14
238000000576 coating method Methods 0.000 claims description 11
239000011248 coating agent Substances 0.000 claims description 9
239000000049 pigment Substances 0.000 claims description 8
125000001931 aliphatic group Chemical group 0.000 claims description 7
150000001412 amines Chemical class 0.000 claims description 7
125000004432 carbon atom Chemical group C* 0.000 claims description 5
150000003839 salts Chemical group 0.000 claims description 4
239000000126 substance Substances 0.000 claims description 4
125000001183 hydrocarbyl group Chemical group 0.000 claims description 3
150000001875 compounds Chemical class 0.000 claims 1
239000002245 particle Substances 0.000 description 10
-1 olefin amines Chemical class 0.000 description 9
239000000314 lubricant Substances 0.000 description 8
239000010410 layer Substances 0.000 description 7
229920000728 polyester Polymers 0.000 description 6
238000005259 measurement Methods 0.000 description 5
AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium dioxide Chemical compound O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 description 4
239000011521 glass Substances 0.000 description 4
239000000203 mixture Substances 0.000 description 4
239000002904 solvent Substances 0.000 description 4
ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
238000003490 calendering Methods 0.000 description 3
238000001035 drying Methods 0.000 description 3
239000011888 foil Substances 0.000 description 3
239000004615 ingredient Substances 0.000 description 3
239000006249 magnetic particle Substances 0.000 description 3
238000013508 migration Methods 0.000 description 3
230000005012 migration Effects 0.000 description 3
JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Chemical group CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 3
RPACBEVZENYWOL-XFULWGLBSA-M sodium;(2r)-2-[6-(4-chlorophenoxy)hexyl]oxirane-2-carboxylate Chemical compound [Na+].C=1C=C(Cl)C=CC=1OCCCCCC[C@]1(C(=O)[O-])CO1 RPACBEVZENYWOL-XFULWGLBSA-M 0.000 description 3
238000012360 testing method Methods 0.000 description 3
IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 description 2
BMYCCWYAFNPAQC-UHFFFAOYSA-N 2-[dodecyl(methyl)azaniumyl]acetate Chemical compound CCCCCCCCCCCCN(C)CC(O)=O BMYCCWYAFNPAQC-UHFFFAOYSA-N 0.000 description 2
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
229910052783 alkali metal Inorganic materials 0.000 description 2
239000011247 coating layer Substances 0.000 description 2
229940110456 cocoa butter Drugs 0.000 description 2
235000019868 cocoa butter Nutrition 0.000 description 2
229920001577 copolymer Polymers 0.000 description 2
JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
239000006185 dispersion Substances 0.000 description 2
150000002148 esters Chemical class 0.000 description 2
229940067606 lecithin Drugs 0.000 description 2
239000000787 lecithin Substances 0.000 description 2
235000010445 lecithin Nutrition 0.000 description 2
239000000463 material Substances 0.000 description 2
229910052751 metal Inorganic materials 0.000 description 2
239000002184 metal Substances 0.000 description 2
229920002635 polyurethane Polymers 0.000 description 2
239000004814 polyurethane Substances 0.000 description 2
229920000915 polyvinyl chloride Polymers 0.000 description 2
239000004800 polyvinyl chloride Substances 0.000 description 2
230000035945 sensitivity Effects 0.000 description 2
239000011734 sodium Substances 0.000 description 2
239000004071 soot Substances 0.000 description 2
238000007655 standard test method Methods 0.000 description 2
238000003756 stirring Methods 0.000 description 2
GOLAKLHPPDDLST-HZJYTTRNSA-N (9z,12z)-octadeca-9,12-dien-1-amine Chemical compound CCCCC\C=C/C\C=C/CCCCCCCCN GOLAKLHPPDDLST-HZJYTTRNSA-N 0.000 description 1
WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 1
WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
CBECDWUDYQOTSW-UHFFFAOYSA-N 2-ethylbut-3-enal Chemical compound CCC(C=C)C=O CBECDWUDYQOTSW-UHFFFAOYSA-N 0.000 description 1
LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
FSYKKLYZXJSNPZ-UHFFFAOYSA-N N-methylaminoacetic acid Natural products C[NH2+]CC([O-])=O FSYKKLYZXJSNPZ-UHFFFAOYSA-N 0.000 description 1
239000005642 Oleic acid Substances 0.000 description 1
ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
108010077895 Sarcosine Proteins 0.000 description 1
229910000831 Steel Inorganic materials 0.000 description 1
GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
238000005299 abrasion Methods 0.000 description 1
239000000853 adhesive Substances 0.000 description 1
230000001070 adhesive effect Effects 0.000 description 1
239000012790 adhesive layer Substances 0.000 description 1
239000000969 carrier Substances 0.000 description 1
150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
238000007796 conventional method Methods 0.000 description 1
238000005260 corrosion Methods 0.000 description 1
230000007797 corrosion Effects 0.000 description 1
235000014113 dietary fatty acids Nutrition 0.000 description 1
ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
238000009792 diffusion process Methods 0.000 description 1
125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 description 1
210000005069 ears Anatomy 0.000 description 1
230000000694 effects Effects 0.000 description 1
150000002170 ethers Chemical class 0.000 description 1
230000001747 exhibiting effect Effects 0.000 description 1
229930195729 fatty acid Natural products 0.000 description 1
239000000194 fatty acid Substances 0.000 description 1
150000004665 fatty acids Chemical class 0.000 description 1
229930195733 hydrocarbon Natural products 0.000 description 1
150000002430 hydrocarbons Chemical class 0.000 description 1
239000001034 iron oxide pigment Substances 0.000 description 1
JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
150000002576 ketones Chemical class 0.000 description 1
125000005645 linoleyl group Chemical group 0.000 description 1
239000007788 liquid Substances 0.000 description 1
230000007774 longterm Effects 0.000 description 1
230000001050 lubricating effect Effects 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
238000000034 method Methods 0.000 description 1
238000003801 milling Methods 0.000 description 1
239000002480 mineral oil Substances 0.000 description 1
235000010446 mineral oil Nutrition 0.000 description 1
238000002156 mixing Methods 0.000 description 1
239000000178 monomer Substances 0.000 description 1
JTHNLKXLWOXOQK-UHFFFAOYSA-N n-propyl vinyl ketone Natural products CCCC(=O)C=C JTHNLKXLWOXOQK-UHFFFAOYSA-N 0.000 description 1
239000003921 oil Substances 0.000 description 1
ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
235000021313 oleic acid Nutrition 0.000 description 1
239000000123 paper Substances 0.000 description 1
239000013034 phenoxy resin Substances 0.000 description 1
229920006287 phenoxy resin Polymers 0.000 description 1
229920006149 polyester-amide block copolymer Polymers 0.000 description 1
229920002689 polyvinyl acetate Polymers 0.000 description 1
239000011118 polyvinyl acetate Substances 0.000 description 1
230000008092 positive effect Effects 0.000 description 1
239000000843 powder Substances 0.000 description 1
229940043230 sarcosine Drugs 0.000 description 1
159000000000 sodium salts Chemical class 0.000 description 1
125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
239000010959 steel Substances 0.000 description 1
239000000057 synthetic resin Substances 0.000 description 1
229920003002 synthetic resin Polymers 0.000 description 1
YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
229920002803 thermoplastic polyurethane Polymers 0.000 description 1

Classifications

- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/7013—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the dispersing agent
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/90—Magnetic feature
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31609—Particulate metal or metal compound-containing
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31725—Of polyamide
- Y10T428/31765—Inorganic-containing or next to inorganic-containing
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31935—Ester, halide or nitrile of addition polymer
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31942—Of aldehyde or ketone condensation product
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31971—Of carbohydrate
- Y10T428/31993—Of paper
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31971—Of carbohydrate
- Y10T428/31993—Of paper
- Y10T428/31996—Next to layer of metal salt [e.g., plasterboard, etc.]

Landscapes

Paints Or Removers (AREA)
Magnetic Record Carriers (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

JP53044719A 1977-04-18 1978-04-15 磁気記録媒体 Expired JPS5923007B2 (ja)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
NL7704183A NL7704183A (nl)	1977-04-18	1977-04-18	Magnetisch registreermedium waarin als disper- geermiddel een n-acylsarcosine derivaat wordt toegepast.
NL000007704183		1977-04-18

Publications (2)

Publication Number	Publication Date
JPS53129606A JPS53129606A (en)	1978-11-11
JPS5923007B2 true JPS5923007B2 (ja)	1984-05-30

Family

ID=19828374

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP53044719A Expired JPS5923007B2 (ja)	1977-04-18	1978-04-15	磁気記録媒体

Country Status (7)

Country	Link
US (1)	US4153754A (fr)
JP (1)	JPS5923007B2 (fr)
BE (1)	BE866051A (fr)
DE (1)	DE2815027C2 (fr)
FR (1)	FR2388362A1 (fr)
GB (1)	GB1572590A (fr)
NL (1)	NL7704183A (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS585457B2 (ja) *	1978-11-30	1983-01-31	ティーディーケイ株式会社	磁気記録媒体
JPS55117739A (en) *	1979-03-03	1980-09-10	Hitachi Maxell Ltd	Magnetic recording medium
JPS5898833A (ja)	1981-12-07	1983-06-11	Fuji Photo Film Co Ltd	磁気記録体
US4584243A (en) *	1982-11-01	1986-04-22	Sumitomo Chemical Company, Limited	Abrasive, production thereof and use thereof in magnetic recording medium
JPS5982633A (ja) *	1982-11-02	1984-05-12	Sumitomo Chem Co Ltd	親油性表面を有する磁気記録用研磨剤
GB8402801D0 (en) *	1984-02-02	1984-03-07	Ici Plc	Dispersion
JPS6153368A (ja) *	1984-08-22	1986-03-17	Nippon Zeon Co Ltd	磁性塗料
GB8531635D0 (en) *	1985-01-22	1986-02-05	Ici Plc	Composition
CA1288881C (fr)	1985-10-04	1991-09-10	Ismael Colon	Produits phosphoryles de reaction, et compositions qui les referment
JPS6289220A (ja) *	1985-10-15	1987-04-23	Hitachi Maxell Ltd	磁気記録媒体
CA1278399C (fr) *	1985-10-15	1990-12-27	Charles Neale Merriam	Resines de chlorure de vinyle, et compositions qui les renferment
EP0244024A1 (fr) *	1986-04-29	1987-11-04	PD Magnetics B.V.	Elément d'enregistrement magnétique
WO1990014672A1 (fr) *	1989-05-26	1990-11-29	Wyman John E	Fluides superparamagnetiques et procedes de production de fluides superparamagnetiques
US5064550A (en) *	1989-05-26	1991-11-12	Consolidated Chemical Consulting Co.	Superparamagnetic fluids and methods of making superparamagnetic fluids
US5114798A (en) *	1991-06-19	1992-05-19	Aluminum Company Of America	Memory disc lubricated by N-acyl sarcosine derivative
US5916355A (en) *	1998-08-11	1999-06-29	Sony Corporation	Corrosion inhibitor for magnetic media
CA2434032A1 (fr) *	2001-01-09	2002-07-18	Aqua-Nova, Llc	Appareil et procede de traitement biologique des contaminants de l'environnement et des dechets
TWI310570B (en) *	2004-07-30	2009-06-01	Jfe Mineral Co Ltd	Ultrafine metal powder slurry
DE102005049136A1 (de) *	2004-12-01	2006-06-08	Degussa Ag	Zubereitung, enthaltend ein polymerisierbares Monomer und/oder ein Polymer und darin dispergiert ein superparamagnetisches Pulver

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1929171C3 (de) *	1969-06-09	1979-06-07	Basf Ag, 6700 Ludwigshafen	Schichtmagnetogrammträger
US3647539A (en) *	1970-02-09	1972-03-07	Ampex	Magnetic recording tape and method for preparing the same
US3804810A (en) *	1970-12-30	1974-04-16	Du Pont	Cross-linked polyurethanes based on aromatic/aliphatic copolyesters
JPS5133758A (fr) *	1974-09-17	1976-03-23	Fuji Photo Film Co Ltd
JPS585454B2 (ja) *	1975-05-06	1983-01-31	株式会社東芝	ジキキロクバイタイ
US4020236A (en) *	1975-07-22	1977-04-26	Fuji Photo Film Co., Ltd.	Process for producing a magnetic material and magnetic recording medium containing the same

1977
- 1977-04-18 NL NL7704183A patent/NL7704183A/xx not_active Application Discontinuation
1978
- 1978-04-07 DE DE2815027A patent/DE2815027C2/de not_active Expired
- 1978-04-10 US US05/894,750 patent/US4153754A/en not_active Expired - Lifetime
- 1978-04-14 GB GB14735/78A patent/GB1572590A/en not_active Expired
- 1978-04-15 JP JP53044719A patent/JPS5923007B2/ja not_active Expired
- 1978-04-17 BE BE186847A patent/BE866051A/fr not_active IP Right Cessation
- 1978-04-18 FR FR7811317A patent/FR2388362A1/fr active Granted

Also Published As

Publication number	Publication date
US4153754A (en)	1979-05-08
BE866051A (fr)	1978-10-17
DE2815027C2 (de)	1985-08-01
DE2815027A1 (de)	1978-10-26
JPS53129606A (en)	1978-11-11
FR2388362A1 (fr)	1978-11-17
FR2388362B1 (fr)	1985-02-15
NL7704183A (nl)	1978-10-20
GB1572590A (en)	1980-07-30

Publication	Publication Date	Title
US4197357A (en)	1980-04-08	Magnetic recording element in which a salt of an amine and a phosphoric acid ester are used as a dispersion agent
US4153754A (en)	1979-05-08	Magnetic recording medium in which an N-acylsarcosine derivative is used as a dispersing agent
GB1598960A (en)	1981-09-30	Magnetic recording medium and magnetic coatings compositions for magnetic recording media
JPS63229612A (ja)	1988-09-26	磁気記録媒体
US4501800A (en)	1985-02-26	Magnetic recording media comprising organosilicones in a magnetic layer thereof
KR870001947B1 (ko)	1987-10-23	자기 피복 조성물 및 자기 기록 필름(磁氣被覆組成勿 및 磁氣記錄媒體)
EP0273440B1 (fr)	1991-05-29	Milieu d'enregistrement magnétique
JP2600787B2 (ja)	1997-04-16	磁気記録媒体
JPS61236019A (ja)	1986-10-21	磁気記録素子
JPS63229613A (ja)	1988-09-26	磁気記録媒体
JPH0610855B2 (ja)	1994-02-09	磁気記録媒体
US5053273A (en)	1991-10-01	Magnetic powder coated with a copolymer of polyoxyethylene allyl methyl diether and maleic anhydride
JPS5928241A (ja)	1984-02-14	磁気記録媒体
JPH05274645A (ja)	1993-10-22	磁気記録媒体
US4391877A (en)	1983-07-05	Magnetic recording medium
JP2674121B2 (ja)	1997-11-12	磁性粉含有水系塗料を用いた磁気記録媒体及びその製造法
US20040253482A1 (en)	2004-12-16	Dual-layer magnetic medium with nonhalogenated binder system
JPS62262225A (ja)	1987-11-14	磁気記録素子
JPS6126934A (ja)	1986-02-06	磁気記録媒体
JPS62219327A (ja)	1987-09-26	磁気記録媒体用固形添加剤およびそれを用いた磁気記録媒体
JPH0464915A (ja)	1992-02-28	磁気記録媒体およびその製造方法
JPS63124217A (ja)	1988-05-27	磁気記録媒体
JPH01134717A (ja)	1989-05-26	磁気記録媒体
JPS595425A (ja)	1984-01-12	磁気記録媒体の製造方法
JPS6292121A (ja)	1987-04-27	磁気記録媒体